Superheater-boiler.



PATENTED with 18, 1907.

No. 857,013. I

- J. E. BELL.

SUPERHEA'I'ER BOILER. APPIQIOATIOI FILED APR. 4, 1905. RENEWED NOV.17.1908.

4 SHEETS-SHEBT 1.

INVENTOR I0. 857,013- PATENTED JUNE 18, 1907. J. E. BELL. SUPERHEATBR BOILER. Arr monxon FILED APR. 4, 1905." RENEWED ,Nov.17.19os.

4snnnmssnnm a PATBNTED JUNE 18, '1907.

J. B. BELL. SUPBRHBATER BOILER.

APPLICATION rrnnn APR. 4. 1905.. nnnnwnn NOV.17,1906.

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INVENTOR fri, f h va @M 78 W L ZA nJ/MM wan UNITED STATES PATENT OFFICE.

JOHN E. BELL, OF 'BARBERTON, OHIO ASSIGNOR TO THE BABCOCK &

XVILCOX COMPANY, OF NEW YORK N. Y, A CORPORATION OF NEW JERSEY.

lSUPERHEATER- -BOILER.

j M No. 857,013.

' Specification of Letters Patent.

Patented June 18, 1907.

Application filed April 4, 1905. Renewed November -17, 1966.. Serial No.'.34='3,9Sl-

berton, Summit county, Ohio, have inventa ed a new and useful rSuperheater-Boiler, of

which the following is a full, clear, and exact description, reference being had to theaccomanying drawings, forming part of this specication, in which' v Figure l is a diagrammatic cross-section of a superheater boiler constructed in accordance-with my invention Fig. 2 is a sectional .sideelevation of the same; Fig. 3 is a'similar section side elevation showing another: ar-

. rangement of the superheater, Figs. 1 and 5 are views similar to Figs. -1 and 2 respectively showing amodlfied form; Fig. 61's a view slmilar to Fig. 5 showing another arrange-- ment of this second form; Figs. 7 and 8 are,

views similar to Figs. 1 .and 2 respectively showing a further form; Figs. 9 and 10 are views similar to Figs. 1-- and 2 showing a modified form 3; and Fig. 1 1 is a modification of the form of Fig. 10'.

My invention relates to the class of water tube boilers having longitudinal upper and lower drums with the setting arranged so that the gases pass longitudinally into the drums.

The invention is designed to provide a su'pe'rheater' -m the sett ng of such a boiler, such superhcater having one or more drums or chambers with superheating tubes connected thereto.

the drawings, referring totheforms of Figs. 1 and 2, 2- represents the longitudinal steam'andwater drum, 3 the corresponding ,longitudinal mu'd drum, 4 the front wall, and

5 the rear wall of the setting, 6 the offtake, and 7 the furnace. The furnace inthis form is shown as placed below the mud drum and an arch or roof 8 extends over the furnace from side to side, a portion ofthe length of gases betweenthebaffles 11 and 13 is occuconnect the steam and water drum with the mud ,drum, and 13 is a depending baffle eX-- tending downward from the upper drum; In thisform the second and middle pass of the pied by-inclined superheating tubes'l l which the boilen with an upper steam drum 1 6 at the other side. The stea'm'dru m 16 is divided by i connect a lower steam drum at one side of v a partition 17 into two chambers, the steam.

entering one chamber through pipes 18 leading from the steam and water drum. The, steam entering one upper chamber descends through a. portion of the tubes 14, thence rises'through the other tubes into the other superheater, these drums being located .on

amber, and passes out through the outopposite sides of the central plane of the.

boiler.

In the form of Figs. 4 and 5 theboiler proper is substantially the same as that of Figs. 1 and-2, while the superheater isprovided with two up or drums 16 arranged on' opposite sides of t 1e steam and water drum 2 and connected by twosets of tubes 14* to the single lowerdrum 15 which is between the steam and water drum 2" and the mud dru'm fi In this form I have shown the superheater as arranged in the second or middle pass of the gases; while in Fig, 6 the form is the-same as that of Fig. 5. except that the superheater is located in the third pass of the gases. -In each case the steam may be takenthrough tubes 18 from the steam and water drum to one of the upper superheater drums, whence it flows down through one set of'superheating. tubes to the lower drum 15 and thence to the other upper drum 16 whence it passes out through the outlet 19.

In Figs. 7 and 8 the boiler is of substantially the same type as that shown in Figs. 1 and 2, while the superheateris provided with .two upper drums 16, and also two lower drums 15.- Each upper steam drumis connected with its corresponding lower steam drum by superheater tubes 14, and steam maybe led to one of the 'upper drums through tubes 18. It then passes to the corresponding lower drum 15; "thence flows through tubes to the other lower drum 15, and thence up to the other upper drum having the outlet 19?. f, I have shown this superheater as located iii the mi ddie in. Fig. .11 have shown a similar errenge- I5 m'ent infthe third pass. l

Tife advantages of invention. result from combining; the superheaterhaving one or more separateiohembersor drums with e" watertub'e boiler having uppers and-lower zo longitudinal drums-, thegases passing-long? tudinally of the'boil'er .drun'os, 4 The bafli'esare preferably arrenged to give the ges esiipi,v

and'do-wn passes, and the first "pass is preierably entirely occupied "by water tubes.

An efficient and' .economioal apparatus thus be provided for forming and superheatfrom the boiler, drums ancl provided with v superheatingtubes; the boiler heving waiter ing steam;

The furnaoemay be exterior or partly eX-- terior to the setting proper, the superheeter may. beprovided with return bent or U- shapecl'tubes the arrangement of the'olruins and tubes may be varied, end many other changes may be made. without departing from invention. 1

I claim:

1. A boiler hsiving upper and lower longi tudinal' drums oonnected by water tubes, means for passing gases longitudinally of the drums and a superhe'eter in the boilerstruc ture having a chamberor drun1 separate eev eis iii) y as uesoribed.

iower ion i uiiinal drums Connected by water tubes, e beffie arranged to give the gases up and down passes among the tubes and vlongtuciin'eliy oi the' drums;1ende .super= heeterflooatecl in the vboiler settingwithfiva ter tubes betweenjitend the'source of a;

said supeiheeter having, een'emher orxiltum" separate from the boiler drums 'e'dnd' provided,

with superheeting tubes eXpos-ed'to the heat 0i tliegeses; substantially asdgis'oribedg 3i Ajweter tube holler haviiiglengitudmal "upper and lower drums connected'by water tubes, beflies arranged to give the gases and down passeslongitudinally of the druinsj anti-among the'weter tubes, encli aQ super of heetenci the tube bolier having upp 60 heeter forming at least the ,major p915 onlof the'heetmg surface in a pass baok'ofthe' first pass of the gases, said superlieater havin" a drum or; chamber seperete from they bol er- 7 "drums andprovi ded with superheeting tubes substantially as described.

upper and lower drums eonneoted hy wet-ertubes, battles arranged to give-at least three; up and down passes to the gasesiongitudinei v or" the drums and asu erheeter for nin f a v v at least the major portion of'th'e ,h'eetingsuP face in a pass in the rear of the 'lirstpass, said superheater having e-drum {r chamber'separate from the boiler drums -25 scribed. ,7 v

Intestimony whereof, I have hereunto set -my-hencl. v I JOHN e. BELL;

-Witnesses MARY E. HAMLIN,

W. T. LUCAS.

4. A water tube boiler having-longitudinal p-i'ovidelgl with jsuperiieating' tubes .substentieiiy yes de- 

